Abstract
For the operation of D-T fusion reactor, tritium breeding materials will be adopted to produce tritium. Li2TiO3–Li4SiO4 biphasic breeders are considered as promising breeding materials due to combining the advantages of Li2TiO3 and Li4SiO4. The annihilation kinetics of defects induced by γ-ray irradiation in xLi2TiO3-(1-x) Li4SiO4 (molar ratio: x = 0.25,0.5,0.75) have been investigated. ESR and Easyspin simulation were employed to elucidate the annihilation processes of the irradiation defects. The defects of E′-center and O−-center were introduced by irradiation. The amount of defects decreased as the molar ratio of Li2TiO3/Li4SiO4 increased. It was indicated that the irradiation stability of Li2TiO3 was better than that of Li4SiO4. According to Easyspin simulation, the defect density of E′-center and O−-center was obtained respectively and the amount of defects decreased as the annealing temperature increased. The activation energy and kinetics equation of E′-center and O−-center in xLi2TiO3-(1-x) Li4SiO4 (x = 0.25,0.5,0.75) were obtained. Based on annihilation kinetics, the correlation between annihilation of irradiation defects and tritium release was given.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.